Device for removing piston-rods from cross-heads



(No Model.)

J. E. WORSWIOK.

DEVICE FOR REMOVING PISTON RODS FROM CROSSHEADS.

Patented Aug. 7, 1883.

a W n 0 INVENTOR:

BY 88% g WITNESSES ATTORNEYS.

UNIT D STATES PATENT FFICE;

JAMES E. WORSWIOK, OF MONTGOMERY, ALABAMA.

DEVICE FOR REMOVING PlSTON-RODS-FROM CROSS=HEADS.

SPECIFICATION forming part of Letters Patent N0. 282,828 dated August 7,1883.

Application filed May 17, 1883. (N0 model.)

of removing piston-rods from cross-heads with-- out the injury of anypart; and it consists in the construction hereinafter described andclaimed.

In the accompanying drawings, Figure 1 is a sectional view of thedevice, showing its application to use; and Fig. 2 is a crosssection online m x of Fig. 1.

A represents a base-piece, the bearing-surface of which is curved to fitthe wrist-pin of the cross-head,as shown.

a represents a stud or projection extending from the base-piece, whichis provided with any proper screw-threads.

B represents a cylinder, and B a feathered nut arranged therein, andprovided with threads adapted to engage with the threads of theprojection a.

b I) represent projections upon the extreme surface of the cylinder, bymeans of which it is adapted to receive any proper form of wrench forturning the same. 12 represents a central projection upon the front endof the cylinder, which is adapted to fit the centering-recess in the endof the piston-rod.-

To adapt the device for being operated either by a wrench or byhydraulic pressure, I provide the stud a with a central longitudinalbore, 0, communicating at one end with the chamber formed by the bottomor closed end of the cylinder B andat the other with a pipe, which is tobe connected to a hydraulic jack. The nut B, screwing on the stud a, isadapted, by means of the feathers (Z, to have only a longitudinalmovement in the cylinderB. The nut B is adapted to bear against anannular shoulder, e, in the cylinder when the latter is properlyoperated with a wrench, while hydraulic pressure will cause the nut B toslide outwardly from the cylinder B sufficiently to withdraw thepiston-rod.

Having thus described my invention, what I I claim as new is 1. Thecombination of the base-piece A, having the threaded projection a,provided with the bore 0, and the cylinder B, formed with an'internalnut, B, screwing on said projection and connected to the cylinder byfeathers d, and adaptedto bear against an annular shoulder, 6, in thecylinder, substantially as shown and described.

2. The device described, consisting of the curved base-piece A, havingthe threaded projection a, and a nut having a suitable bearing, as andfor the purpose set forth.

JAMES EDWARD WOBSWIGK. WVitnesses:

O. D. WALL, ARTHUR T. HANNON.

